西秦岭岷礼成矿带地球化学特征及其地质意义

doi:10.11872/j.issn.1005-2518.2021.04.022

摘要/Abstract

摘要：

通过对西秦岭岷礼成矿带化探数据中Au、Cu、Pb、Zn、W和Sn进行分形模型研究，发现Au和Sn具有多层次的地球化学场，指示该区Au和Sn具有更高的富集程度和成矿潜力。通过因子分析法得到的第一主因子（F1）的元素组合为Co-Cr-Cu-Ni-Ti-V-Zn，代表了晚古生代地层，其得分分布与区域铜、金矿化套合较好，表明矿化可能来自于该套地层。代表铅—锌、钨—锡矿化的因子（F2~F4）得分与晚三叠纪侵入岩体一致，表明该系列矿化与岩浆作用相关。F5因子只含有Au元素，表明金矿化更可能受区域复杂褶皱断裂系统的控制。研究结果将为岷礼成矿带地质找矿提供新的方向。

关键词: 分形模型, 因子分析, 地球化学特征, 矿化类型, 成矿潜力, 岷礼成矿带

Abstract:

Minxian-Lixian metallogenic belt is rich in polymetallic resources in the west Qinling area，which has a complex tectonic history.However，there is still a lack of research on the geochemical anomaly patterns and ore-controlling factors of different types of deposits，which restricting the deployment of ore prospecting and exploration.To solve the problems，data of stream sediment geochemistry is utilized to study metallogenesis at a regional scale，to reveal the characteristics of distribution and association of geochemical elements，and thus provide important guidance for prospecting and exploration.A total of 4 095 samples were collected in the area and centered log-ratio（CLR） transformation was performed in the following to alleviate the skewness of raw data and make the element concentration tend to a normal distribution.Based on the fractal theory，Concentration-Area （C-A） models of Au，Cu，Pb，Zn，W and Sn have been established.It is found that elements of Au and Sn have multiple levels of geochemical fields，indicating that they have higher degree of enrichment and metallogenic potential.The geochemical anomalies of Au，Cu，Pb and Zn in the north subbelt can be roughly divided into two categories.One is related to the Late Triassic intrusive magmatism，where Suolong and Mawu gold deposit and Daijiazhuang Pb-Zn deposit expose.Another is related to the regional complex fault-fold system （Minxian-Tanchang fault and the Diebu anticline），where Zhaishang super-large gold deposit and several mineralization points expose.Also，anomalies of W and Sn show a strong spatial correlation with the Wuduojinhua pluton，hosting many mineralization points.Before performing factor analysis， Bartlett test of sphericity and KMO test were used to test the relevance of the selected data.The results show that the KMO value is 0.91，and Bartlett’s sphericity test also meets the conditions of factor analysis.The results of factor analysis indicate：（1）The element association of the first factor （F1） is Co-Cr-Cu-Ni-Ti-V-Zn，which represents the Late Paleozoic strata，and the factor score is consistent with the regional Cu，Zn mineralization，indicative of mineral sources from the strata.（2）The second factor （F2：As-Hg-Sb） represents the association of cryogenic elements，controlled by the Minxian-Tanchang fault and the Diebu anticline.（3）The third factor （F3：Bi-Sn-W） represents the element association of high temperature，controlled by Wuduojinhua pluton and the Diebu anticline.（4）The fourth factor （F4：Ba-Pb） shows similar patterns as F3；（5）The fifth factor （F5） has a single element of Au and it is irrelevant with the known Late Triassic magmatism，which indicates that the Au mineralization probably is related with complex tectonic system instead of magmatism.The main conclusions include：（1）C-A fractal model shows that elements of Au and Sn have higher degree of enrichment and metallogenic potential.（2）The results of factor analysis show that Cu and Zn mineralization probably come from the Late Paleozoic strata，Pb-Zn and W-Sn mineralization is related to magmatism of the late Triassic.The tectonic ore-controlling effect on Zhaishang gold deposit is more obvious.（3）Based on the combination of C-A fractal model and factor analysis，it is predicted that the Diebu anticline has a huge prospecting potential of Pb-Zn and W-Sn.

Key words: fractal model, factor analysis, geochemical characteristics, mineralization types, metallogenetic potentiality, Minxian-Lixian metallogenic belt

中图分类号:

P618.51

马承,宋伊圩,孙彪,王占彬. 西秦岭岷礼成矿带地球化学特征及其地质意义[J]. 黄金科学技术, 2021, 29(4): 489-499.

Cheng MA,Yiwei SONG,Biao SUN,Zhanbin WANG. Geochemical Characteristics and Geological Significance of Minxian-Lixian Metallogenic Belt，Western Qinling Region[J]. Gold Science and Technology, 2021, 29(4): 489-499.

图/表 7

图1

图2

图3

表1

图4

图5

图6

参考文献 0

	Afzal P，Mirzaei M，Yousefi M，al et，2016.Delineation of geochemical anomalies based on stream sediment data utilizing fractal modeling and staged factor analysis［J］.Journal of African Earth Sciences，119：139-149.
	Alipour S M，Afzal P，Hekmatnejad A，2020.Identification of geochemical anomalies using fractal and LOLIMOT neuro-fuzzy modeling in Mial area，central Iran［J］.Journal of Mining and Environment，11：99-117.
	Aliyari F，Afzal P，Lotfi M，al et，2020.Delineation of geochemical haloes using the developed zonality index using multivariate and fractal analysis in the Cu-Mo porphyry deposits［J］.Applied Geochemistry，121：104694.
	Asadi H，Kianpouryan S，Lu Y J，al et，2014.Exploratory data analysis and C-A fractal model applied in mapping multi-element soil anomalies for drilling：A case study from the Sari Gunay epithermal gold deposit，NW Iran［J］.Journal of Geochemical Exploration，145：233-241.
	Chen Caihua，Sun Bing，Chen Ji，al et，2017.Prospecting effect of stream sediment survey in Zhongzhai-Shilipu area of west Qinling Mountains［J］.Gold Science and Technology，25（4）：1-9.
	Chen Yanjing，Zhang Jing，Zhang Fuxin，al et，2004.Carlin and carlin-like gold deposits in western Qinling Mountains and their metallogenic time，tectonic setting and model［J］.Geological Review，50（2）：134-152.
	Cheng Q M，2007.Mapping singularities with stream sediment geochemical data for prediction of undiscovered mineral deposits in Gejiu，Yunnan Province，China［J］.Ore Geology Review，32：314-324.
	Cheng Q M，Agterberg F P，Ballantyne S B，1994.The separation of geochemical anomalies from background by fractal methods［J］.Journal of Geochemical Exploration，51（2）：109-130.
	Cheng Qiuming，2006.Singularity-generalized self-similarity-fractal spectrum （3S） models［J］.Science Journal of China University of Geosciences，31（3）：337-348.
	Deng J，Wang Q F，2016.Gold mineralization in China：Metallogenic provinces，deposit types and tectonic framework［J］.Gondwana Research，36：219-274.
	Dong Yunru，Dong Huaxiang，Xie Xiang，al et，2019.Geochemical anomalies and prospecting prospect analysis of the Dangqinggounao gold-tungsten deposit in Gansu［J］.Northwestern Geology，52（3）：136-142.
	Duan Yongmin，Zhu Yongxin，Li Tongguo，al et，2007.Discovery and geological significance of Daijiazhuang lead-zinc deposit in Gansu，western Qinling area［J］.Geology and Prospecting，43（1）：44-48.
	Feng Yimin，Cao Xuanduo，Zhang Erpeng，al et，2003.Tectonic evolution framework and nature of the west Qinling orogenic belt［J］.Northwestern Geology，36（1）：1-10.
	Fyzollahhi M，Torshizian H，Afzal P，al et，2018.Determination of lithium prospects using fractal modeling and staged factor analysis in Torud region，NE Iran［J］.Journal of Geochemical Exploration，189：2-10.
	Goldfarb G J，Qiu K F，Deng J，al et，2019.Orogenic gold deposits of China［J］.Society of Economic Geologists Special Publications，22：263-324.
	Ke Changhui，Wang Xiaoxia，Yang Yang，al et，2020.Petrogenesis of dykes and its relationship to gold mineralization in the western Qinling belt：Constraints from zircon U-Pb age，geochemistry and Nd-Hf-S isotopes of Liba gold deposit［J］.Mineral Deposits，39（1）：42-62.
	Ke Xianzhong，Xie Shuyun，Gao Shunbao，al et，2015.Multifractal distribution patterns of geochemical data and its metallogenic significance：A case study in Bange region，Tibet［J］.Geological Science and Technology Information，34（1）：148-153.
	Liu J J，Dai H Z，Zhai D G，al et，2015.Geological and geochemical characteristics and formation mechanisms of the Zhai-shang carlin-like type gold deposit，western Qinling Mountains，China［J］.Ore Geology Reviews，64：273-298.
	Liu Jianhong，Zhang Xinhu，Zhao Yanqing，al et，2006.A study of minerogenetic series of west Qinling region in Gansu Province and its ore-prospecting significance［J］.Mineral Deposits，25（6）：727-734.
	Liu Kun，Liu Jiajun，Wu Jie，al et，2014.Fluid inclusion characteristics of the Mawu gold deposit in Gansu Province and their geological significance［J］.Geology in China，41（5）：1594-1607.
	Liu Tianhang，2017.Geology，Geochemistry and Metallogenic Regularity of the Suolong Gold Deposit，Gansu Province［D］.Beijing：China University of Geoscience（Beijing）.
	Xiwang Lü，Wang Jianzhong，Zheng Weijun，al et，2017.Genesis and prospecting potential of scheelite in the Zhaishang gold deposit，Minxian County，Gansu Province［J］.Northwestern Geology，50（2）：156-166.
	Pourgholam M M，Afzal P，Yasrebi A B，al et，2020.Detection of geochemical anomalies using a fractal-wavelet model in Ipack area，central Iran［J］.Journal of Geochemical Exploration，220：106675.
	Treiblmaier H，Filzmoser P，2010.Exploratory factor analysis revisited：How robust methods support the detection of hidden multivariate data structures in IS research［J］.Information & Management，47（4）：197-207.
	Wang Q F，Deng J，Liu H，al et，2010a.Fractal models for ore reserve estimation［J］.Ore Geology Reviews，37（1）：2-14.
	Wang Q F，Deng J，Zhao J，al et，2010b.Tonnage-cutoff model and average grade-cutoff model for a single ore deposit［J］.Ore Geology Reviews，38（1）：113-120.
	Xiang Zhonglin，Gu Xuexiang，Wang Enying，al et，2019.Extraction of synthetic multi-element geochemical anomalies under the multifractal model［J］.Acta Mineralogica Sinica，39（2）：183-191.
	Xiao Lin，Huo Qinzhi，Liu Bin，al et，2007.1∶250000 regional geological survey report of Minxian（Hezuo）（I48C002002）［R］.Lanzhou：Geological Survey Institute of Gansu Province.
	Yang L，Wang Q F，Liu H，al et，2017.Identification and mapping of geochemical patterns and their significance for regional metallogeny in the southern Sanjiang，China［J］.Ore Geology Reviews，90：1042-1053.
	Yang L，Wang Q F，Liu X F，2015.Correlation between mineralization intensity and fluid-rock reaction in the Xinli gold deposit，Jiaodong Peninsula，China：Constraints from petrographic and statistical approaches［J］.Ore Geology Reviews，71：29-39.
	Yasrebi A B，Hezarkhani A，2019.Resources classification using fractal modelling in Eastern Kahang Cu-Mo porphyry deposit，central Iran［J］.Iranian Journal of Earth Sciences，11（1）：56-67.
	Yousefi M，Kamkar-Rouhani A，Carranza E J M，2012.Geochemical mineralization probability index （GMPI）：A new approach to generate enhanced stream sediment geochemical evidential map for increasing probability of success in mineral potential mapping［J］.Journal of Geochemical Exploration，115：24-35.
	Yousefi M，Kamkar-Rouhani A，Carranza E J M，2014.Application of staged factor analysis and logistic function to create a fuzzy stream sediment geochemical evidence layer for mineral prospectivity mapping［J］.Geochemistry Exploration Environment Analysis，14（1）：45-58.
	Zhang Guowei，Zhang Benren，Yuan Xuecheng，al et，2001.Qinling Orogenic Belt and Continental Dynamics［M］.Beijing：Science Press.
	陈彩华，孙斌，陈冀，等，2017.西秦岭中寨—十里铺地区水系沉积物测量找矿效果［J］.黄金科学技术，25（4）：1-9.
	陈衍景，张静，张复新，等，2004.西秦岭地区卡林—类卡林型金矿床及其成矿时间、构造背景和模式［J］.地质论评，50（2）：134-152.
	成秋明，2006.非线性成矿预测理论：多重分形奇异性—广义自相似性—分形谱系模型与方法［J］.地球科学，31（3）：337-348.
	董运如，董化祥，谢祥，等，2019.甘肃西秦岭地区当庆沟脑金钨矿床地球化学异常特征及找矿前景［J］.西北地质，52（3）：136-142.
	段永民，朱永新，李通国，等，2007.甘肃西秦岭地区代家庄铅锌矿床的发现及意义［J］.地质与勘探，43（1）：44-48.
	冯益民，曹宣铎，张二朋，等，2003.西秦岭造山带的演化、构造格局和性质［J］.西北地质，36（1）：1-10.
	柯昌辉，王晓霞，杨阳，等，2020.西秦岭地区脉岩成因与金成矿关系——来自李坝金矿年代学、地球化学及Nd-Hf-S同位素的约束［J］.矿床地质，39（1）：42-62.
	柯贤忠，谢淑云，高顺宝，等，2015.西藏班戈地区化探数据的多重分形特征及其成矿意义［J］.地质科技情报，34（1）：148-153.
	刘建宏，张新虎，赵彦庆，等，2006.西秦岭成矿系列、成矿谱系研究及其找矿意义［J］.矿床地质，25（6）：727-734.
	刘坤，刘家军，吴杰，等，2014.甘肃马坞金矿成矿流体特征及地质意义［J］.中国地质，41（5）：1594-1607.
	刘天航，2017.甘肃锁龙金矿床地质地球化学特征及成矿规律［D］.北京：中国地质大学（北京）.
	吕喜旺，王建中，郑卫军，等，2017.甘肃省岷县寨上金矿床白钨矿成因及找矿潜力［J］.西北地质，50（2）：156-166.
	向中林，顾雪祥，王恩营，等，2019.多重分形模式下多元素综合地球化学异常的提取［J］.矿物学报，39（2）：183-191.
	肖林，霍勤知，刘彬，等，2007.（合作镇）岷县幅1∶25万区域地质调查报告（I48C002002）［R］.兰州：甘肃省地质调查院.
	张国伟，张本仁，袁学诚，等，2001.秦岭造山带与大陆动力学［M］.北京：科学出版社.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

元素	F1	F2	F3	F4	F5
特征值	6.652	1.972	1.604	1.375	1.007
Ag	0.296	0.409	0.160	0.330	0.241
As	0.111	0.753	0.110	0.037	0.146
Au	0.098	0.173	0.015	-0.184	0.806
Ba	0.246	-0.080	-0.077	0.751	0.020
Bi	0.125	0.058	0.809	0.012	-0.072
Co	0.749	0.157	0.091	0.168	-0.018
Cr	0.832	-0.019	0.123	0.063	0.030
Cu	0.837	0.208	0.093	0.068	0.058
Hg	0.191	0.670	-0.007	-0.176	-0.164
Mn	0.575	0.071	0.291	0.306	0.251
Mo	0.411	0.438	-0.004	0.292	0.079
Ni	0.836	0.089	0.027	0.087	0.025
Pb	0.100	0.047	0.466	0.549	-0.065
Sb	0.012	0.812	0.012	-0.030	0.026
Sn	0.295	-0.064	0.792	0.019	0.011
Sr	0.021	0.162	-0.019	-0.408	-0.646
Ti	0.741	-0.002	0.347	0.004	0.093
V	0.848	0.137	0.161	0.043	0.009
W	0.192	0.232	0.585	0.042	0.329
Zn	0.663	0.303	0.213	0.186	-0.010

[1]	王斌, 宋明春, 刘志宁, 李健, 董磊磊, 张艺多, 蒋雷, 王润生, 董小涛, 刘家良. 胶东地区早白垩世周官高镁闪长岩体年代学、地球化学特征及其构造意义[J]. 黄金科学技术, 2024, 32(5): 798-812.
[2]	李炎, 王建国, 魏生云, 李国璋, 胡建, 王志男. 西藏德新铅多金属矿床地球物理与地球化学综合找矿研究[J]. 黄金科学技术, 2024, 32(3): 400-415.
[3]	俞炳, 丁正江, 陈伟军, 李肖, 刘彩杰, 薛建玲, 曾庆栋, 范宏瑞, 吴金检, 张琪彬. 胶东西岭金矿床黄铁矿热电性特征及深部找矿意义[J]. 黄金科学技术, 2024, 32(2): 207-219.
[4]	张勇, 李水平, 荆鹏, 冯攀. 河南嵩县九仗沟金矿床地球化学特征与勘查模式[J]. 黄金科学技术, 2024, 32(2): 258-269.
[5]	王振, 杨镇熙, 陈海云, 方成豪, 樊新祥. 甘肃北山华窑山一带1/5万水系沉积物地球化学特征及金、钨找矿远景[J]. 黄金科学技术, 2023, 31(4): 546-559.
[6]	张勇,张爱奎,何书跃,刘智刚,刘永乐,张鹏,孙非非. 东昆仑祁漫塔格地区库德尔特金矿区花岗闪长岩的时代、成因及其构造意义[J]. 黄金科学技术, 2023, 31(1): 1-14.
[7]	谢金玲,林彬,祁婧,邓世林,何亮,张晓旭. 花岗岩型铷矿研究进展及青藏高原铷矿找矿方向[J]. 黄金科学技术, 2023, 31(1): 26-36.
[8]	陈海云,龚振中,杨镇熙,任长旭,周兆明. 甘肃北山音凹峡地区水系沉积物测量地球化学特征及找矿靶区优选[J]. 黄金科学技术, 2023, 31(1): 37-49.
[9]	李博文,谷华娟,李成禄,刘宝山,杨晓平. 黑龙江省三合屯金矿床地质特征及找矿潜力分析[J]. 黄金科学技术, 2022, 30(4): 508-517.
[10]	陈振, 王翠芝, 吕古贤, 张宝林, 张启鹏, 魏竣滨, 史晓鸣. 柴胡栏子金矿黄铁矿的化学成分标型特征及其矿床学意义[J]. 黄金科学技术, 2022, 30(2): 165-178.
[11]	何金霖, 李俊, 许慧玲, 曹李慧, 孙德华. 山东曹家洼金矿石头顶矿段土壤地球化学特征及找矿预测[J]. 黄金科学技术, 2022, 30(2): 179-195.
[12]	张宇,魏俊浩,石文杰,李国猛,周新琪,毛国正,刘成林. 藏南康马县布主金（锑）矿土壤地球化学异常信息提取及成矿预测[J]. 黄金科学技术, 2022, 30(1): 1-18.
[13]	冼源宏,詹华思,李健唐. 广东怀集地区矽卡岩型铁多金属矿床同位素地球化学特征及其地质意义[J]. 黄金科学技术, 2021, 29(6): 805-816.
[14]	刘铭,王仔章. 青海省都兰县丘吉东沟金矿水系沉积物地球化学特征及找矿远景[J]. 黄金科学技术, 2020, 28(6): 837-845.
[15]	张振, 宁生元, 徐增田. 胶东玲珑九曲金矿床载金黄铁矿矿物学特征及其深部找矿意义[J]. 黄金科学技术, 2020, 28(3): 328-336.